Active Ingredient(s):

125g/L epoxiconazole


Systemic cereal fungicide for the control of diseases in barley, maize, wheat and ryegrass seed crops.


General Instructions

General Information

OPUS is a broad spectrum contact and fungicide with protectant and eradicant activity. OPUS is taken up via the stem and foliage and is translocated upwards and outwards to provide some protection to new growth. Thorough coverage of the crop is necessary for best results. OPUS has curative activity against early stages of infection but optimum results are obtained from application prior to the onset of infection.

Resistance Management

OPUS contains epoxiconazole a triazole fungicide in the DMI mode of action group GROUP 3 FUNGICIDE. Resistance to this fungicide, and related GROUP 3 fungicides could develop from excessive use. To minimize this risk use strictly in accordance with label instructions and resistance management strategies that exist for any fungus listed on the label. Frequency of application must be strictly adhered to in accordance with the Directions for Use. OPUS should be used in a programme that incorporates fungicidal products from alternate action groups to that of triazoles. Apply no more than three GROUP 3 fungicide sprays per season, and only two if a GROUP 3 fungicide seed treatment was used.

Direction for Use

It is an offence to use this product on animals.


Add the required amount directly into partly filled spray tank with agitation operating. Complete filling and maintain agitation until spraying is complete.


OPUS is compatible, where appropriate, in two and three-way mixtures with Comet, Terpal, Cycocel, Perfekthion S, Duplosan KV, Duplosan Super, Glean and Foliar Nitrophoska. OPUS can also be used in wheat in three and four-way mixes with Cycocel, Puma S and D-C-Trate. Care must be taken to ensure recommendations for all products are followed. No phytotoxic effects have been observed on available cultivars of wheat and barley. It is recommended to limit use of mixtures to small experimental areas on new cultivars to test plant compatibility before extensive use. Mixtures should be applied immediately after preparation.


Do not apply if rainfall is likely within two hours of treatment.


Do NOT carry this product on a passenger service vehicle.


Prevent further spillage and product from entering waterways. Wear overalls, gloves, footwear and goggles. Absorb spill with an inert material (e.g. vermiculite) and place in a labeled, sealable container for disposal. Wash affected area with water and detergent. Absorb and collect washings and place in the same sealable container as the spilled material. Dispose of the waste safely in a suitable landfill.

Personal Protection

When preparing or applying spray, wear cotton overalls buttoned to the neck and wrist, a washable hat, impermeable gloves, and goggles or a face shield.

General Safety and Hygiene Measures

Avoid contact with skin, eyes and clothing. Avoid breathing vapour or spray mist. Do NOT eat, drink or smoke when using this product. Remove protective clothing and wash hands and exposed skin thoroughly with soap and water before meals and after work. Wash protective clothing immediately after use. Store work clothing separately.


Apply with well-maintained and accurately calibrated equipment. Do NOT spray over, or allow drift over, surface water such as ponds, waterways or drains. Clean out application equipment thoroughly after use. Do NOT contaminate surface or ground water when disposing of equipment wash waters.


Storage and application must be as described in the current version of the New Zealand Standard for the Management of Agrichemicals NZS8409.

First Aid

If exposed or concerned get medical advice/attention. IF SWALLOWED: Do NOT induce vomiting. Rinse mouth. For advice contact the National Poisons Centre 0800 POISONS (0800 764 766) or a doctor if you feel unwell. IF ON SKIN: Remove contaminated clothing and wash skin with plenty of soap and water. Do NOT scrub the skin. If skin irritation or rash occurs, get medical advice/attention. Wash contaminated clothing before reuse. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Get medical advice/attention if you feel unwell.


Store in original container, tightly closed, in a locked, dry, cool, well-ventilated place away from food and animal feeds. When stored appropriately this product should show no significant degradation for two years from the date of manufacture. Contact your supplier for further information about the use of any product that is older than this. Stores containing 1000 litres or more of this product require emergency response plans and secondary containment systems, and are subject to signage.


Container: Triple rinse empty container and add rinsate to the spray tank. Recycle through Agrecovery (0800 247 326, www.agrecovery.co.nz). Product: Dispose of this product only by using according to the label or at an approved landfill. Do NOT burn product. Do NOT contaminate any water supply with product or used container.



May cause reproductive/development damage from repeated oral exposure at high doses. May cause damage to organs from repeated oral exposure at high doses.

Toxic to Aquatic Organisms with Longlasting Effects

May cause long-term adverse effects in the aquatic environment. Drift and runoff from treated areas may be hazardous to aquatic organisms in adjacent aquatic sites

Product details last updated on 29 Aug 2012

DISCLAIMER: This is not the OPUS label. To view or print the label for this product, click the "SDS/Label" tab at the top of this page. Always follow label instructions.

For specialist advice in an EMERGENCY only phone , TOLL-FREE, ALL-HOURS, NATIONWIDE

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